This code was supposed to demonstrate/teach how look_down works, and how to modify any tags you might find, it wasn't meant for direct inclusion in your program, after all, I'm not writing your program :)

Its like learning to juggle

First you start with one ball

and then practice with two balls

and two in one hand

then three balls.

Next you start with one bowling pin

and then two bowling pins

and then two bowling pins in one hand

and then three bowling pins

Next you start with one ball and one bowling pin

and then one ball and one bowling pin in one hand

and then two balls and one bowling pin

Next you start with one two bowling pin and one ball

And then you start with one knife

and then two knives

then two knives in one hand

and then three knives

Again you start with one ball and one knife

then one ball and one knife in one hand

then one knife and two balls

Eventually you work your way up to three chainsaws, two bowling pins, two knives, and four tennis balls

In this analogy, each juggling session is a new small program you've written.
The more of them you write, the easier they get to write, the easier they get to combine, and if you forget how something works, you've got tons of little programs to show you.